array
(PHP 3, PHP 4 )
array --
Create an array
Description
array
array ( [mixed ...])
Returns an array of the parameters. The parameters can be given
an index with the => operator.
Note:
array() is a language construct used to
represent literal arrays, and not a regular function.
Syntax "index => values", separated by commas, define index
and values. index may be of type string or numeric. When index is
omitted, a integer index is automatically generated, starting
at 0. If index is an integer, next generated index will
be the biggest integer index + 1. Note that when two identical
index are defined, the last overwrite the first.
The following example demonstrates how to create a
two-dimensional array, how to specify keys for associative
arrays, and how to skip-and-continue numeric indices in normal
arrays.
Example 1. array() example $fruits = array (
"fruits" => array ("a"=>"orange", "b"=>"banana", "c"=>"apple"),
"numbers" => array (1, 2, 3, 4, 5, 6),
"holes" => array ("first", 5 => "second", "third")
); |
|
Example 2. Automatic index with array() $array = array( 1, 1, 1, 1, 1, 8=>1, 4=>1, 19, 3=>13);
print_r($array); |
will display :
Array
(
[0] => 1
[1] => 1
[2] => 1
[3] => 13
[4] => 1
[8] => 1
[9] => 19
) |
|
Note that index '3' is defined twice, and keep its final value of 13.
Index 4 is defined after index 8, and next generated index (value 19)
is 9, since biggest index was 8.
This example creates a 1-based array.
Example 3. 1-based index with array() $firstquarter = array(1 => 'January', 'February', 'March');
print_r($firstquarter); |
will display :
Array
(
[1] => 'January'
[2] => 'February'
[3] => 'March'
) |
|
See also array_pad(),
list(), and range().